01 sport

I put in some new style Bosch single hole injectors. These are the newer single hole style with a different orifice inside that are suppose to atomize better than the 4 hole style.

When I installed them, I noticed that you can't run the stock clips. The little beveled area the clips ride in don't line up.

So I've been driving for a month or so with these in. I smelled some gas pulling into the gas station, popped the hood and number 1 was giving a tiny little spray from the manifold side. I gave it a slight turn, it stopped. That was a week ago. Pulled into car wash today. Same symptom. Turned it the other way, leak got worse. Turned it nearly a 1/4 turn and it stopped but I'm realizing this isn't a permanent fix.

Any ideas? Maybe clean the manifold and rail and try to reseat? Any seating tips?

Thanks guys

 

I recently swapped mine and I used Q-Tips and rubbing alcohol to clean the manifold/seat area. The cotton fibers will trap carbon/crud very well and better prevent any of it from falling in the ports. You can try and see if it helps...

Could be the o-rings are not the correct size.

What is the part # of the injectors you purchased?

 

I am assuming you are running them without the clip-nuts then?

X2..What is the injector number?

 

Part # XR3E-A4B

Got that number from doing a bunch of reading and searches here ok CF

Confirmed, no clip nuts

 

I know this is stating the obvious, but, something is preventing them from sealing correctly since they should be fine.

Whether it's damaged/incorrect size o-rings or dirty seats in the manifold, IDK.

Did you apply petroleum jelly to the o-rings when you installed them?

 

I'll try the petroleum jelly. I guess I'm just gonna pull the whole rail and try again.

Just for future reference, do the 4-hole injectors use clip nuts? If the jelly doesn't work, I'll prolly just buy a set of 4 holes if they do use clip nuts

 

Yes the 784's will re-use the stock clip nuts.

You may have damaged the o-rings upon installation due to no lubricant. All it takes it a very small amount and avoid the pintle itself.

Here is a write-up from CF member dukie564 if you want a reference. It's well written and easy to understand. The only step I didn't follow was the manifold seat/port area. I used Q-Tips and rubbing alcohol instead of a thin blade screwdriver.

Let us know how things turn out.

 

Thanks for the help. I'll update this thread when I mess wit them this weekend.

 

Welcome. Here's the link:

https://www.cherokeeforum.com/f51/in...ap-4-0l-92149/

 

Where did you buy the injectors?

 

eBay... Maybe not the best idea.

Hopefully I can get some new o rings locally.

 

Pulled the rail yesterday. Cleaned everything up really well, replaced the o rings on the leaky injector and all is well for the time being. It took about 2 months for them to leak the first time. Fingers crossed